members of parliament have been questioning paul stephenson the chief of scotland yard who resigned over the scandal. his second in command and assistant police chief stepped down yesterday. he told the panel he did no wrong and wanted to restore confidence in his department. >> i spoke and they are willing to do something even they don't think they did anything wrong but willing to walk away but are willing to walk away. >> murdoch and son james and rebecca brooks chief executive of the news corp will also be testifying this morning. it's an inquiry into police mediation and possible corruption. >> the state shuttle has left the space station for the last time. the crew of four are due back to earth on thursday morning. it left them with a xhem rat ra active shuttle model and u.s. flag that has flew on first shuttle mission back in 1981. it will mark the end of nasa's 30-year shuttle program. >> heat wave is likely to spread misery to the east coast. 17 states have watches and advisories posted from the texas to the dakotas. it's not a dry heat. >> much of the sheet centered over areas